Please also note in Shift_Lock's post the italicized should. In theory, yes it should still work. However, since I do not have the dongle you are referring to and am not able to test this myself, I make no guarantees. Just wanted to be 100% honest with you.

Please post back and let us know for sure so that we can tell others if the same question arises again.

I tried letterbomb today on my 4.3 e wii but the letterbomb thing didnt show up. my wii was a 4.2 U then I downgraded it to 3.4E and softmodded it with the wehackwii guide. Then my stupid brother updated my wii. I typed the correct MAC address and I have internet on my wii, I had a 2gb sandisk micro sd card that has a sd adapter that was formatted to fat32. I put the files in the private folder and boot.elf and i put in wii. I wait.... wait........browsing through all the days forward and backward for like half an hour and it didnt shot up so thats y i am asking. Is it because a 4.2U wii turned into a 4.3e wii that made the mac address a fake? or is it the adapters problem, but I used teh adapter to softmod with banner bomb on my wii before and 2 of my freind's. Please I need help.

The usb drivers you refer to are in the IOS, not the system menu. You are downgrading the system menu, not the IOS. As Shift_Lock said in the post above yours, the IOS will be up to date if you follow this guide.

I did the resoftmod. Everything works Gretchen as expected except these sensors. It broke that compatibility. It no longer can detect the USB bluetooth dongle. Any suggestions?

I did the resoftmod. Everything works Gretchen as expected except these sensors. It broke that compatibility. It no longer can detect the USB bluetooth dongle. Any suggestions?

Is this a retail game or a backup? If it is a backup the compatibility should be in the cios running the game, if a retail game disc it would be the ios. The system menu should not have any effect. The system menu, games, channels, wiiware, vc all run independently from each other on ios. There are many ios and many programs that run on them, like the system menu and games, but one does not effect the other. So your compatibility issue should be in the ios or cios running the game. If running a backup try another cios. If the backup was working but now is not, you may wish to install whatever cios it was working with into ios slot 246 or other slot. If it is a game disc, identify what ios that game uses to run and try to reinstall an updated copy.

I don't know anything about this bluetooth your using, so if you are still having issues and you think it is related to the system menu 4.1 you can update it back to 4.3. You can update to 4.3 with MMM, install ios80 with patches then install system menu 4.3, then exit to the HBC and reinstall priiloader.